ASTM D6461/D6461M-18

Standard Specifications for Silt Fence Materials

ABSTRACT
This specification covers requirements and test methods for geotextile fabrics and associated components used in temporary silt fence applications. It is applicable to the use of a geotextile as a vertical permeable interceptor designed to remove suspended soil from overland, nonconcentrated water flow. The function of a temporary silt fence is to trap and allow settlement of soil particles from sediment laden water. The purpose is to greatly limit the transport of eroded soil from the construction site by water runoff. Fibers used in the manufacture of geotextiles for silt fence, and the threads used in joining geotextiles by sewing, shall consist of long-chain synthetic polymers composed of at least 95 % by weight of polyolefins or polyester. They shall be formed into a stable network such that the filaments or yarns retain their dimensional stability relative to each other, including selvages. Geotextiles and related materials used for temporary silt fence shall conform with required grab strength, permittivity, apparent opening size, and ultraviolet stability. The prescribed support posts are described in the specification.
SCOPE
1.1 This specification covers requirements and test methods for geotextile fabrics and associated components used in temporary silt fence applications. Table 1 is a material purchasing specification based on AASHTO M288. Table 2 is a specification to be used in areas of high water flow. The specification on Table 2 is a higher strength, higher flow option than Table 1. Table 2 properties can withstand more hydraulic flow than the specification listed on Table 1. The Table 2 specification should be used in sensitive applications, such as areas near regulated waters and wetlands, but also areas that are prone to high flow runoff that require increased structural stability. The design professional has the option of Table 2 where the specifications listed in Table 1 are not sufficient to meet the demand of runoff.  
1.2 Both specifications are applicable to the use of a geotextile as a vertical permeable interceptor designed to remove suspended soil from overland, nonconcentrated water flow. The function of a temporary silt fence is to trap and allow settlement of soil particles from sediment laden water. The purpose is to greatly limit the transport of eroded soil from construction sites and other areas affected by water runoff.
Note 1: It should be noted that proper installation and maintenance are critical for the effective functioning of silt fence.  
1.3 The tests used to characterize the silt fence are intended to ensure good workmanship and quality and are not necessarily adequate for design purposes in view of the wide variety of possible sediments and performance objectives.  
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents, therefore each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
Note 2: Although the Table 1 specification should be acceptable in most erosion control applications, it should be noted that an alternative silt fence specification for a higher water flow rate, listed in Table 2, may be required by the engineers in areas that are susceptible to higher water runoff; using Table 2 specification will minimize safety hazards such as hydroplaning in these areas.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Historical
• Publication Date: 31-Dec-2017
• ICS: 59.080.70 - Geotextiles
• Technical Committee: D35 - Geosynthetics
• Drafting Committee: D35.06 - Geosynthetic Specifications

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D6461/D6461M −18
Standard Specifications for
1
Silt Fence Materials
This standard is issued under the fixed designation D6461/D6461M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
NOTE 2—Although the Table 1 specification should be acceptable in
1. Scope*
mosterosioncontrolapplications,itshouldbenotedthatanalternativesilt
1.1 This specification covers requirements and test methods
fence specification for a higher water flow rate, listed in Table 2, may be
for geotextile fabrics and associated components used in required by the engineers in areas that are susceptible to higher water
runoff; using Table 2 specification will minimize safety hazards such as
temporary silt fence applications. Table 1 is a material pur-
hydroplaning in these areas.
chasing specification based on AASHTO M288. Table 2 is a
1.5 This international standard was developed in accor-
specification to be used in areas of high water flow. The
dance with internationally recognized principles on standard-
specification on Table 2 is a higher strength, higher flow option
ization established in the Decision on Principles for the
than Table 1. Table 2 properties can withstand more hydraulic
Development of International Standards, Guides and Recom-
flow than the specification listed on Table 1. The Table 2
mendations issued by the World Trade Organization Technical
specification should be used in sensitive applications, such as
Barriers to Trade (TBT) Committee.
areas near regulated waters and wetlands, but also areas that
are prone to high flow runoff that require increased structural
2. Referenced Documents
stability. The design professional has the option of Table 2
2
2.1 ASTM Standards:
where the specifications listed in Table 1 are not sufficient to
D123 Terminology Relating to Textiles
meet the demand of runoff.
D276 Test Methods for Identification of Fibers in Textiles
1.2 Both specifications are applicable to the use of a
D653 Terminology Relating to Soil, Rock, and Contained
geotextile as a vertical permeable interceptor designed to
Fluids
remove suspended soil from overland, nonconcentrated water
D4354 Practice for Sampling of Geosynthetics and Rolled
flow.The function of a temporary silt fence is to trap and allow
Erosion Control Products (RECPs) for Testing
settlement of soil particles from sediment laden water. The
D4355/D4355M Test Method for Deterioration of Geotex-
purpose is to greatly limit the transport of eroded soil from
tiles by Exposure to Light, Moisture and Heat in a Xenon
construction sites and other areas affected by water runoff.
Arc-Type Apparatus
NOTE1—Itshouldbenotedthatproperinstallationandmaintenanceare
D4439 Terminology for Geosynthetics
critical for the effective functioning of silt fence.
D4491/D4491M Test Methods for Water Permeability of
1.3 The tests used to characterize the silt fence are intended
Geotextiles by Permittivity
to ensure good workmanship and quality and are not necessar- D4632/D4632M Test Method for Grab Breaking Load and
ily adequate for design purposes in view of the wide variety of
Elongation of Geotextiles
possible sediments and performance objectives. D4751 Test Methods for Determining Apparent Opening
Size of a Geotextile
1.4 The values stated in either SI units or inch-pound units
D4759 Practice for Determining the Specification Confor-
are to be regarded separately as standard. The values stated in
mance of Geosynthetics
each system may not be exact equivalents, therefore each
D4873/D4873M Guide for Identification, Storage, and Han-
system shall be used independently of the other. Combining
dling of Geosynthetic Rolls and Samples
values from the two systems may result in non-conformance
D6637/D6637M Test Method for Determining Tensile Prop-
with the standard.
erties of Geogrids by the Single or Multi-Rib Tensile
Method
1
This specification is under the jurisdiction of ASTM Committee D35 on
Geosynthetics and is the direct responsibility of Subcommittee D35.06 on Geosyn-
2
thetic Specifications. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Jan. 1, 2018. Published February 2018. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1999. Last previous edition approved in 2016 as D6461 – 16a. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D6461_D6461M-18. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United State
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D6461/D6461M − 16a D6461/D6461M − 18
Standard Specifications for
1
Silt Fence Materials
This standard is issued under the fixed designation D6461/D6461M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope Scope*
1.1 This specification covers requirements and test methods for geotextile fabrics and associated components used in temporary
silt fence applications. Table 1 is a material purchasing specification based on AASHTO M288. Table 2 is a specification to be used
in areas of high water flow. The specification on Table 2 is a higher strength, higher flow option than Table 1. Table 2 properties
can withstand more hydraulic flow than the specification listed on Table 1. The Table 2 specification should be used in sensitive
applications, such as areas near regulated waters and wetlands, but also areas that are prone to high flow runoff that require
increased structural stability. The design professional has the option of Table 2 where the specifications listed in Table 1 are not
sufficient to meet the demand of runoff.
1.2 Both specifications are applicable to the use of a geotextile as a vertical permeable interceptor designed to remove suspended
soil from overland, nonconcentrated water flow. The function of a temporary silt fence is to trap and allow settlement of soil
particles from sediment laden water. The purpose is to greatly limit the transport of eroded soil from construction sites and other
areas affected by water runoff.
NOTE 1—It should be noted that proper installation and maintenance are critical for the effective functioning of silt fence.
1.3 The tests used to characterize the silt fence are intended to ensure good workmanship and quality and are not necessarily
adequate for design purposes in view of the wide variety of possible sediments and performance objectives.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents, therefore each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
NOTE 2—Although the Table 1 specification should be acceptable in most erosion control applications, it should be noted that an alternative silt fence
specification for a higher water flow rate, listed in Table 2, may be required by the engineers in areas that are susceptible to higher water runoff; using
Table 2 specification will minimize safety hazards such as hydroplaning in these areas.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D123 Terminology Relating to Textiles
D276 Test Methods for Identification of Fibers in Textiles
D653 Terminology Relating to Soil, Rock, and Contained Fluids
D4354 Practice for Sampling of Geosynthetics and Rolled Erosion Control Products (RECPs) for Testing
D4355D4355/D4355M Test Method for Deterioration of Geotextiles by Exposure to Light, Moisture and Heat in a Xenon Arc
Type Apparatus
D4439 Terminology for Geosynthetics
D4491D4491/D4491M Test Methods for Water Permeability of Geotextiles by Permittivity
D4632D4632/D4632M Test Method for Grab Breaking Load and Elongation of Geotextiles
D4751 Test Methods for Determining Apparent Opening Size of a Geotextile
1
This specification is under the jurisdiction of ASTM Committee D18 on Soil and Rock and is the direct responsibility of Subcommittee D18.25 on Erosion and Sediment
Control Technology.
Current edition approved Dec. 1, 2016Jan. 1, 2018. Published January 2017February 2018. Originally approved in 1999. Last previous edition approved in 2016 as D6461 –
16.16a. DOI: 10.1520/D6461_D6461M-16A.10.1520/D6461_D6461M-18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright ©
...